03212+2109 COU 259 (Tau Ari)

Coord 2000	03212+2109		Discov num	COU 259		Comp			Coord arcsec 2000	03 21 13.63 +21 08 49.5
Date first	1968		Date last	2013		Obs	26
Pa first	246		Pa last	217		P.A. Now (θ)	217°
Sep first	0.7		Sep last	0.9		Sep. Now (ρ)	0.9"
Mag pri	5.34		Mag sec	8.09		delta mag (ΔM)	2.75		Spectral class	B5IV (blue-white)
Pri motion ra	+026		Sec motion ra	+026
Pri motion dec	-025		Sec motion dec	-025
Notes	N (See Notes)

Nature of this double is uncertain.

Name	Tau Ari		Constellation	Aries		SAO	75886		HIP	15627
Tycho2	1245-01184-1		HD	20756		HR	1005		GC	4007
BD	BD+20 543		Bayer	Tau Arietis		Bayer name	Tau Ari		Flamsteed	61 Arietis
Flamsteed name	61 Ari		Distance	156.01		Distance ly	508.9		last precise pa	216.5
last precise sep	0.91

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
03212+2109	COU 259		2005	25	220	0.9	5.34	8.09	B5IV	N D	032113.63+210849.5
03212+2109	COU 259		2013	26	217	0.9	5.34	8.09	B5IV	N	032113.63+210849.5

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